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CAS No. : | 560088-79-1 | MDL No. : | MFCD06796877 |
Formula : | C23H44N2O6 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | SWUXEYKTUQROOO-UHFFFAOYSA-N |
M.W : | 444.61 | Pubchem ID : | 2755939 |
Synonyms : |
|
Chemical Name : | Dicyclohexylamine 2,2-dimethyl-4-oxo-3,8,11-trioxa-5-azatridecan-13-oate |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With hydrogenchloride; In 1,2-dimethoxyethane; water; | N-Boc-8-amino-3,6-dioxaoctanoic acid × dicyclohexylamine (300 mg) was dissolved in dimethoxyethane (10 mL). The amine was precipitated by addition of 37% hydrochloric acid (?60 muL) and removed by filtration. Removal of the solvent in vacuo yielded a yellow oil (200 mg, 0.76 mmol) which was dissolved in anhydrous DCM (3 mL). CDI (148 mg, 0.91 mmol) was added and the mixture was allowed to stand at rt for 30 min. DCM (15 mL), 30 (478 mg, 0.76 mmol) and NEt3 (77 mg, 105 muL, 0.76 mmol) were added and the mixture was kept under stirring at rt for 20 h. TFA (10 mL) was added, the mixture was allowed to stand at rt for 4 h before it was concentrated under reduced pressure. MeOH (20 mL) was added twice each time followed by evaporation under reduced pressure. Purification by preparative HPLC (isocratic: MeCN/0.1% aq TFA 32:68, tR = 14 min) afforded the product as a white fluffy, hygroscopic solid (300 mg, 47%). inlMMLBox +6.2 cm3 g-1 dm-1 (c 0.010 in MeCN/H2O 9:1); IR (neat): 1670, 1635, 1515, 1495, 1200, 1130 cm-1; 1H NMR (300 MHz, DMSO-d6): delta (ppm) 1.32-1.61 (m, 3H), 1.68 (m, 1H), 2.98 (m, 2H), 3.25 (m, 2H), 3.61 (m, 4H), 3.71 (m, 2H), 4.1 (dd, 1H, 2J = 15.4 Hz, 3J = 6.1 Hz), 4.18 (dd, 1H, 2J = 15.4 Hz, 3J = 6.2 Hz), 4.23 (s, 2H), 4.33 (m, 1H), 5.13 (s, 1H), 6.67 (m, 2H), 7.0 (m, 2H), 7.18-7.33 (m, 10H), 7.8 (br s, 3H), 8.39 (t, 1H, 3J = 5.8 Hz), 8.51 (d, 1H, 3J = 8.1 Hz), 8.81 (s, 2H), 9.12 (m, 1H), 9.32 (s, 1H), 10.98 (s, 1H); 13C NMR (150 MHz, MeOH-d4): delta (ppm) 25.4, 30.2, 40.6, 42.0, 43.7, 54.3, 58.7, 67.9, 71.1, 71.3, 72.1, 116.3, 117.3 (TFA), 119.2 (TFA), 128.1, 128.2, 129.49, 129.52, 129.8, 129.9, 130.0, 130.3, 140.8, 140.9, 154.7, 157.8, 162.7 (TFA), 163.0 (TFA), 163.2 (TFA), 163.4 (TFA), 173.3, 174.0, 174.9; MS (ES, acetonitrile/TFA): m/z 310 [M+2H]2+, 619 [M+H]+; HRMS: (LSI-MS): m/z [M+H]+ calcd for inlMMLBox: 619.3244, found: 619.3257; C33H42N6O6 × C4H2F6O4 (846.8). |
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